Striking and repeating mechanism for clocks



(Model.)

0. G. ORTH & H. L. BRUGGEMANN.

STRIKING AND REPBATING MECHANISM FOR CLOCKS.

No. 269,450. Patented Dec. 19, 1882.

aarzw 6 9 UNITED STATES PATENT OFFICE.

CHARLES G. ORTH AND IIEJRY L. BRUGGEMANN, Oi CLEVELAND, OHIO.

STRIKING AND REPEATING MECHANISM FQR CLOCKS.

SPECIFICATION forming part of Letters Patent No. 269,450, dated December 19, 1882.

(Model.)

To all whom it may concern Be it known that we,- CHARLES G.OR'1H and HENRY L. BRUGGEMANN, both of Cleveland, in the county of Guyahoga and State of Ohio, have invented certain new and useful lmprovements'in Clocks, of which the following is a specification.

These improvements relate to the striking parts in pendulum-clocks, and have for their object to make the clock always strike rightthat is, that the clock shall always strike the hour indicated by the hour-hand; also, in setting the clock in turning the minute-hand around either forward or backward the striking parts will also be set to strike right; also. that the striking of the hour may be repeated as often as may be desired within the hour last struck without changin also, that the clock may be made not to strike, if desired, for any length of time, whether the striking side he run down or not, without changing the arrangement, so that when started again it will strike the proper hour.

The construction, combination, and operation of these improvements will fully appear from the subjoined description,when considered inconncction with the accompanying drawings, in which- Figure l is aback view of the running-works of a clock having ourimprovements attached. Fig. 2 is an edge view of part of the same. Figs. 3, 4, 5, 6, 7, and 8 are detached views of the new pieces composing the devices in my improvement.

In the clock we remove the striking notched wheel from the main wheel, the stop-lever engaging said wheel, the two shafts, and levers and lifter operated by turning of the long pointer. In place of these removed parts we construct and attach the following:

To the minutehand shaft a, which is extended through the back plate, is attached a disk, I), having a projecting-arm, 1). Near to this is placed a star-wheel, 0, having a snail, c, permanentlyfixed thereto. The star has twelve points and the'snail has twelveincrease projections. A retaining-lever, d, is placed below said star 0. It is pivoted at one end to the back plate, and is bent or crooked, as shown, to make a bearing against the two lower points of the star, and is held up with a little force by a spring, (1. This is to prevent the star from being turned by jarring or handling of the clock.

A lever, 0, having on its upper end a segmental rack, c, is pivoted at its lower end to the back plate and stands upright, so that the rack engages with and is operated by a disk, f, on an extension of shalt g, said disk hav ing two pins,ff, which, as the disk revolves, carry the rack tooth by tooth as the striking goes on. The lower end of said lever has an arm, 0 which, as the lever falls over, strikes against the snail 0, thus limiting the throw of the rack to the number of teeth corresponding with the projection on said snail.

A lifting-lever, It, is pivoted at t on the inside of the back plate near the upper left-hand corner. It is longand reaches across the plate to the upper right-hand corner, and terminates in a downward projecting arm, h, having a tooth, t, on the end, which engages with the rack 0. Near the bend or elbow in the lever his an opening or slot, 7L having a lug or lip, 7L3, serving as astop, engaging with a pimp, on the wheel '10 of the striking-gear.

An angle-lever, Z, is pivoted at the angle to the inside of the back plate. The end of its horizontal arm is provided with a slot in which the end of aspring, 8, rests, the opposite end being secured to the plate. The end of the perpendicular end of said lever l-hangs near the shaft of the minute-hand, and is operated upon by a bent pin, r, on said shaft to lift the lever h to set the clock to striking. At the right-hand side of the plate is attached a sliding rod, 00, playing in an ear or lug, y, and which would reach out through the clock-case for the purpose of operating the same from the outside. This rod is intended as a means of preventing the clock striking at all, when desired.

The operation of this improvement is as follows:

First. To set the striking part of the clock, which may have stopped running by having run down or otherwise, the star 0 and its snail 0 having been adjusted in position relative to the min lite-hand, as shown in the drawings-that is, with the longest or farthest projection on the snail corresponding with the position of the hour-hand pointing at one oclock.

Now, by turning the minute-hand around, either to the right or left, the projection I) on disk 1) turns the star 0 and snail a one tooth forward or' back, thus presenting the right part of the worm as a stop for-the throw of the lever ewhen the clock is to strike. hen the (lock is about to strike the star and worm are turned, as above stated, by the movement of the clock automatically, and at the same time the lifting-lever It is lifted by the angle-lever Z by the pin won the minute-hand shaft 01.. This lifts the tooth t and releases the rack 0. Then it is thrown over to the right by the spring 8, and then the arm 6 strikes the snail, so that the fall of the lever and rack is thus limited to fall the distance of the number of teeth on the rack for striking the hour. The lever h is lifted so that the pin 1) can pass by the lug I1. by the tooth t riding or sliding up the incline ot' rack-teeth. The force which causes said tooth t to slide upward is derived from the mainspring of the striking part of the clock, and is exerted by the pins ff on the revolving diskf, which push the rack along tooth by tooth as they revolve. The depth of the rack-teeth is suflicient to let the tooth t drop low enough to let the lug it fall below and allow the said pin 1) to pass it until the last tooth is passed. Then the tooth tdrops onto the shoulder t on the rack c, which is only onehalf the depth of the teeth. This holds the lever 71 up so that its lug 71 comes in line with the pin 1). Then the wheel to is stopped and and the striking ceases.

Second. To repeat the striking of the hour,

by pressing down on the projecting end of the lifting-lever h and releasing the rack it immediately falls as before, and the clock again strikes the hour last struck. This may be repeated as often as desired until the worm is changed.

Third. To prevent the clock striking at all the rod 00 may be pushed in until its inner end rests against the lever (2. Then when the lifter is raised said lever 0 cannot fall over. Consequently the pin 1) on wheel 10 is not released. Therefore the striking-gear cannot start. The lever (2 is held against a permanent stop, at, on the back plate.

Having described our invention, we claim- The combination, with movements ofa clock, of the disk I), having arm I). the star 0, having the snail c, the lever d, with spring (1, the lever 0, with its rack 0, arm 0 and spring 8, the lifting-lever It, having arm It and tooth t, the lug h, engaging with pin 1) on wheel w, and the angle-lever I, having spring 8, all arranged to operate substantially in the manner described, and for the purpose specified.

CHAS. G. ORTH. HENRY L. PJQUGGEMANX.

Witnesses:

F. W. GADWELL, Geo. W. Trenrr'rs. 

